I own and like RCE RIchard Corbin gear. I cant comment on what others have but The gear that I have from Richard is first rate. Ditez and Niemi are far superior but I dont think necessary and if your looking to drop a couple thousand dollars on a set of dies they no doubt are the best. Dave Corbin is more of a sales man that Richard and from what I have found out I think Richard is a lot more honest. The problem with both the corbin brothers are they arent getting any younger and as far as I can tell when they are gone so is the business. I think BT makes great dies its obvious and so does a lot of others. I talked to Richard and asked him why he no longer offered reloading press dies. Basically the jest of it was hes the lone man in his company and he decided he cant do it all anymore. so he concentrates where its more profitable for him and in his opinion offers a better system I agree obviously I bought his gear. But there is another option out there and that is Larry Blackmon his gear is good too but the down side to Dr. Blackmons gear is its small and fragile. Dr Blackmon also makes or used to make reloading press dies too but he also offers a conversion kit for reloading presses and it works just like the old corbin mighty mite. Effective and makes good bullets. I certainly hope that all the players bring swaging back because I thourouglly enjoy rolling my own. To me its as satisfying as reloading shooting anything else in our sport I think its all quality gear and every one has their preference I dont knock anyones gear it will all get the job done and i think the quality of the projectiles is more of a function of the swager than the dies or die maker.